REMKO RR 22.0 Operation Technology

REMKO RR 22.0

Room temperature controller
KWK 130 to 870, KWK 130 to 870 ZW,
KWD 25 to 100 EC, WLT 25 to 85 S,
DKT 21-4 to 71-4

Operation · Technology

Edition GB - N01

Contents

Safety notes

4

Intended use

Environmental protection and recycling

Guarantee

Description

Operation

Installation Instructions for qualified personnel

Installation

Adjustable systems and functions

Electrical wiring

Electrical drawings

Commissioning

Technical data

Electrical wiring diagram, two-wire system

Electrical wiring diagram, four-wire system

4

5

5

5

6

7

7

8 - 9

10

11

11

11

12 - 19

20 - 21

Carefully read this operating manual prior to commissioning/using the units!

This manual is an integral part of the unit and must always be kept in the vicinity

of the installation location or on the unit itself.

This operating manual is a translation of the German original.

Subject to modifications; no liability accepted for errors or misprints!

REMKO RR

Safety notes

Carefully read the operating manual
before placing the unit or components
into service for the first time. It provides
useful tips
warnings to prevent injury and material
damage. Failure to follow the directions
in this manual can endanger persons,
the environment and the equipment
itself and will void any claims for liability.

■ Keep this manual in the vicinity of the

units or components.

■ Only qualified personnel may set up

and install the units or components.

■ The unit or its components must be

set-up, connected and operated in
accordance with the use and operating
conditions stipulated in this manual
and comply with all applicable local
regulations.

■ Modification of the units and

components supplied by REMKO
is not permitted and can cause
malfunctions.

■ Units and components may not be

operated in areas where there is an
increased risk of damage. Observe the
minimum clearances.

■ The electrical power supply is to be

adapted to the requirements of the
units or components.

■ The operational safety of units or

components is only assured if they are
fully assembled and used as intended.
Safety devices may not be modified or
bypassed.

, notes and hazard

■ Do not operate units or components

if there are obvious defects or signs of
damage.

■ The units or components must be

kept at an adequate distance from
flammable, explosive, combustible,
abrasive and dirty areas or atmospheres.

■ Installation, repair and maintenance

work may only be carried out
by authorised specialists. Visual
inspections and cleaning can be
performed by the operator as long
as the unit is disconnected from the
power.

■ To preclude any risks to persons

originating from the units or
components, appropriate precautions
must be taken when installing,
repairing, maintaining, cleaning or
working on the units.

Intended use

Depending on the design and
equipment, the components are
intended exclusively for installation in
dry rooms and for controlling cold water
indoor units.
Any different or additional use is
non-intended use. The manufacturer /
supplier assumes no liability for damages
arising from non-intended use. The user
bears the sole risk in such cases.
Intended use also includes working
in accordance with the operating and
installation instructions.

4

Environmental
protection and
recycling

Disposal of packaging

All products are packed for transport
in environmentally friendly materials.
Make a valuable contribution to reducing
waste and sustaining raw materials.
Only dispose of packaging at approved
collection points.

Disposing of the components

The manufacturing process for the
units is subject to continuous quality
control. Only high-grade materials are
processed, the majority of which are
recyclable. Help protect the environment
by only disposing of the components in
accordance with local regulations and
in an environmentally safe manner, e.g.
through authorised disposal and recycling
specialists or at collection points.

Guarantee

This accessory is an electronic wall­mounted individual room controller for
temperature regulation of indoor units
for cooling and heating. It automatically
controls the three fan stages and the
opening and closing of the valves for
more convenient temperature control.
The temperature can be measured by
the internal temperature sensor or by
a separate temperature sensor. The inlet
temperature can also be processed. Due
to a large number of program options,
the controller is very versatile and can be
optimally adapted to the system.

Scope of delivery

■ 1 pc Controller

■ 1 pc Wall bracket

■ 1 pc Fixing material

The warranty conditions are listed in the
"General terms and conditions".
Please contact your direct contractual
partner in the first instance.

Description

The precision room temperature
controller serves for the operation of the
unit series KWK, KWK-ZW, KWD EC,
WLT-S and DKT-4 within closed rooms
from a remote location.

Accessories

1611380-1
1611381-1

Room temperature probe SA
Inlet temperature probe SM

1611381-11611380-1

5

REMKO RR

Operation

The remote control is operated using
the relevant switches and temperature
controllers. If necessary, also use the
operating instructions of the unit being
operated.

Fanselector switch:

Temperature controller:

Adjusting the target temperature

Setting limit

Level 1 - Level 2 - Level 3 -

AUTO

Mode selector switch:

OFF O - Heating - Cooling

Fan selector switch

The fan level can be changed by
actuating the selector switch. There
are 3 fixed settings ("I" = low,"II" =
medium and "III" = high) as well as an
automatic level ("AUTO"). In "AUTO"
level, a large temperature deviation from
the adjusted set point activates a high
level and in the case of a small deviation,
a low level.

Mode selector switch

The key is used to switch off "O" of the
controller and to select the operating
mode "Heating " or "Cooling ".

Temperature controller

With the temperature control knob,
the desired setpoint can be set within
the range 5 to 35°C in 1°C steps.

If a limitation of the setting range is to
be implemented on the control knob,
the tabs located in the connection area
within the controller must be inserted
into the corresponding holes and,
if necessary, fixed.

Setting limit

6

Installation instructions
for qualified personnel

■ Check the contents of the packaging

for completeness and check the
unit for visible transport damage.
Immediately notify your contract
partner of any deficiencies.

NOTE

Installation should only be
performed by authorised
specialists.

CAUTION!

All electrical installation work
is to be performed by specialist
companies. Disconnect the power
supply when connecting the
electrical terminals.

CAUTION!

Check all plug and terminal
connections to verify that they
are tight and make a permanent
contact. Tighten as required.

Removing the housing cover

Remove the control knob and release
thelocking mechanism

Installation

1. Disconnect the power supply.

2. Open the controller cover by lifting off
the rotary knob carefully and pressing
in the lock cautiously.

3. Mount the room temperature
controller on the wall at a height of
approx. 1.5 m above the wall bracket.

Choose an installation location that
is guaranteed good air circulation and
is not affected by any sources of heat
or cold.

4. Make the connections in accordance
with the electrical drawings.
Electric connections must be carried
out as fixed connections in accordance
with the applicable regulations!

5. Check the jumper settings and adjust
them if necessary.

6. Check the terminals are tight.

7. Re-attach the cover.

Wall bracket

Locking screw

60 mm

23 mm

Remove front cover

1.

2.

7

REMKO RR

Adjustable systems and
functions

Two-wire system with one valve for
cooling or heating (J1=B):

The controller can be used to control
a system with a heating/cooling valve
in a two-wire system: a system with
a valve-controlled, half-yearly generated
warm medium in winter, e.g. through
a boiler, and half-yearly generated
cold medium in summer, e.g. through
a chiller. But also unswitchable, e.g.
air-water or brine-water heat pumps can
feed a two-wire system.
A heat exchanger in the indoor unit can
then give off the heat or cold.
Only a valve connected to terminal 7-8
regulates the medium-side flow rate in
the heat exchanger of the indoor unit in
both operating modes.
The operating modes can be switched
manually at the controller by means
of the operating mode selector switch
or automatically by means of the inlet
temperature sensor SM.

Four-wire system with a valve for cooling
and a valve for heating (J1=A):

The controller can be used to control
a system with a cooling valve and
a further heating valve in a four-wire
system: a system with a valve-controlled,
half-yearly generated warm medium
in winter, e.g. through a boiler, and
a second system with half-yearly
generated cold medium in summer,
e.g. through a chiller.
A heat exchanger "cooling" and
a further heat exchanger "heating"
in the indoor unit can then give off the
respective heat or cold.

A heating valve connected to terminal
7-8 and a cooling valve connected to
terminal 8-9 regulate the medium-side
flow rate into the heat exchanger of the
indoor unit in both operating modes.
The operating modes can be switched
manually at the controller by means
of the operating mode selector switch
or automatically by means of the inlet
temperature sensor SM.

Two-wire system with a valve for cooling
and an electric heating element for
heating:

The controller can be used to control
a system with an electric heating
element for heating and a valve for
cooling in a two-wire system: an electric,
half-yearly heating element in winter,
and a second system with half-yearly
cold medium in summer, e.g. by a chiller.
A heat exchanger for cooling and
an electrical heating element for heating
in the indoor unit can then give off the
respective heat or cold. An electrical
heating element connected to terminal
7-8 and a cooling valve connected to
terminal 8-9 regulate the control of the
heating element and the medium flow
rate on the medium side in the heat
exchanger of the indoor unit.
The operating modes can be switched
manually at the controller by means
of the operating mode selector switch
or automatically by means of the inlet
temperature sensor SM.
If heating elements are used, it is
necessary to have the fan run on after
the heating element has been switched
off to suit the local conditions (to be
provided by the customer).

8

Valve types

The controller is only designed to control
NC ON/OFF valves:

- an NC valve releases the medium flow
rate into the heat exchanger when
voltage is applied

Mode of operation ON-OFF valve

Hysteresis
Setpoint
Actual value

Valve voltage

Valve opening

1

0
1

0

Measuring temperature

The controller measures the temperature
by means of the internal NTC probe
in the controller or on an external
room probe SA, which is available as
an accessory.

External room temperature probe SA
(terminal 13-14)

The controller has an internal
temperature probe (J4=A). If the
controller is not going to be located in
the room to be controlled, an optional
room temperature probe accessory can
determine the temperature (J4=B).
The maximum cable length of 25 m
must not be exceeded.

Inlet temperature sensor SM, alternative
bimetallic thermostat BC (terminal 11-12)

The controller is equipped for use
with an SM inlet temperature sensor
(available as an accessory) or a BC
bimetallic thermostat.
When positioning the inlet temperature
sensor SM on the supply line to
the indoor unit, the controller can
automatically switch to the operating
mode corresponding to the measured
medium temperature (automatic
changeover).
In this case, the heating mode is
activated at a measured temperature
of >30°C and the cooling mode at
a measured temperature of <17°C.

Alternatively, a bimetallic thermostat
BC can be used at the same inlet for
positioning at the heat exchanger, which
releases the fan operation in heating
mode when a minimum temperature
is reached (see chapter "Minimum
temperature medium").
The maximum cable length of 25 m
must not be exceeded.

Minimum temperature, medium heating

When using a BC bimetallic thermostat,
the fan is only enabled when the bimetal
contact (contact 11-12) is closed. The
use of a inlet temperature probe is then
not possible.

NOTE

If the inlet temperature probe SM or
alternatively a bimetallic thermostat
BC is not used, a jumper between
terminals 11-12 must be provided!

CAUTION!

When using an enabling contact
CF and bimetallic thermostat BC,
certain safety restrictions must
be observed. Please refer to the
corresponding chapter.

9

REMKO RR

Electrical wiring

General notes

The controller is suitable for controlling
three-stage fan convectors.

The fan stages are controlled by three
potential-free relay outputs at terminals
3 to 5.

The controller is designed for controlling
ON/OFF valves or an electric heating
element. Terminals 7-8 are for heating
output and terminals 8-9 for cooling
output.

Additional notes

1. The positioning of the inlet
temperature probe must be selected
in such a way that the temperature
can also be measured when the valve
is inactive.

2. Individual probes may not be used
for several controllers.

3. Only one temperature probe may be
used at the terminals.

4. All probes, bimetallic or enabling
contacts connected must be
insulated accordingly.

5. An all-pole disconnecting main
switch and a fuse must be provided.

6. The connection of all external
contacts, e.g. enabling contacts,
must be galvanically isolated from all
live and earthed parts of the system.

7. If persons can reach the hazardous
areas of external contacts, special
safety measures must be taken (e.g.
safety extra-low voltage).

8. The controller cover may only be
opened in de-energised state.

Configuring jumper

Configuring jumper

J1 Wiring system
four-wire two-wire

J2 Automatic fan operation, every 15 min. for 90 sec.
enabled disabled

J3 Fan function
always active on request

J4 Selection of the temperature sensor

internal (standard)

A BA B

A BA B

A BA B

A BA B

external (accessory)

External input

Enabling contact CF (terminal L-10)

The controller can be disabled or enabled
by an external potential-free contact.
Operation and temperature control are
not possible when disabled.
As long as the CF input is connected, the
controller cannot be operated.

Mounting the housing cover

1.

1.

10

2.

3.

Electrical drawings

Commissioning

Room temperature controller RR 22.0

Fan level 1

Fan level 2

Fan level 3

Power supply

Legend

BC Bimetallic thermostat, optional

(alternative to SM)
CF Enabling contact, optional
M Fan motor
SA Room temp. probe (Accessory 1611380-1)
SM Inlet temp. probe (Accessory 1611381-1)

Control of cooling valve

Control of heating valve

Technical data

Bimetallic thermostat BC

Enabling contact CF

Inlet temperature probe SM

Room temperature probe SA

Option

1. Switch the unit on using the room
temperature controller.

2. Program the desired functions.

3. Check all functions.

4. Install all removed parts.

5. Familiarise the operator with the
functions.

NOTE

If the inlet temperature probe SM or
alternatively a bimetallic thermostat
BC is not used, a jumper between
terminals 11-12 must be provided!

CAUTION!

When using an enabling contact
CF and bimetallic thermostat BC,
certain safety restrictions must
be observed. Please refer to the
corresponding chapter.

Series RR 22.0

Operating mode

Precision room temperature controller

for WLT-S/CHP/CHP/CHP-EC/DKT-4

Operating range °C/r.H. 10 to +40/30 to 80% non-condensing
Temperature range for storage purposes

°C/r.H. -10 to +50/20 to 80% non-condensing
Adjustment range °C 5 to +35 (grid = 1)
Control precision/hysteresis °C/K +- 1.5/0.4
Power supply V/Hz 230/1~/50
Enclosure class IP 30
Contact load, max. A 3.0 (Fan)/0.3 (Valve)
Electr. standby losses VA 7.7
Dimensions H/W/D mm 87 / 132 / 38
Weight kg 0.2
Colour Signal white (similar to RAL 9003)
EDP 1611397

We reserve the right to modify the dimensions and design as part of the ongoing technical development process.

11

REMKO RR

Electrical wiring diagram, two-wire system

RR 22.0 with KWD... EC, two-wire system (example)

RR 22.0

Enabling

contact

CF

KWD...EC

Valve
assembly
(accessory)

BC SM

Bimetallic

thermostat

(alternative)

Room

temperature

probe

SA

Inlet

temperature

probe

JP4 = B

Technical modifications reserved. Information provided without guarantee. Customer-specific modification possible!

12

RR 22.0 and SR 1 with multiple KWD... EC, two-wire system (example)

RR 22.0

Enabling

contact

SR 1 (Accessory)

CF

Valve assemblies
(accessories)

Further units

BC SM

Bimetallic

thermostat

(alternative)

Room

temperature

probe

SA

Inlet

temperature

probe

JP4 = B

KWD...EC

KWD...EC

Technical modifications reserved. Information provided without guarantee. Customer-specific modification possible!

13

REMKO RR

RR 22.0 with WLT... S, two-wire system (example)

Enabling

contact

CF SA

RR 22.0

BC SM

Bimetallic

thermostat

(alternative)

Room

temperature probe

Inlet temperature

probe

JP4 = B

Valve
assembly
(Series)

Technical modifications reserved. Information provided without guarantee. Customer-specific modification possible!

WLT...S

14

RR 22.0 and SR 1 with multiple WLT... S, two-wire system (example)

SR 1

Enabling

contact

CF

Further units

RR 22.0

BC SM

Bimetallic

thermostat

(alternative)

Room

temperature

probe

SA

Inlet

temperature

probe

JP4 = B

WLT...S WLT...S

Valve
assembly
(Series)

Technical modifications reserved. Information provided without guarantee. Customer-specific modification possible!

Valve
assembly
(Series)

15

REMKO RR

RR 22.0 with CHP, two-wire system (example)

Enabling

contact

CF SA

RR 22.0

BC SM

Bimetallic

thermostat

(alternative)

Room

temperature

probe

Inlet

temperature

probe

JP4 = B

Valve assembly
(accessory)

KWK

Technical modifications reserved. Information provided without guarantee. Customer-specific modification possible!

16

RR 22.0 and SR 1 with multiple CHP, two-wire system (example)

SR 1

Enabling

contact

CF

Further units

RR 22.0

BC SM

Bimetallic

thermostat

(alternative)

Room

temperature

probe

SA

Inlet

temperature

probe

JP4 = B

KWK KWK

Valve assembly
(accessory)

Technical modifications reserved. Information provided without guarantee. Customer-specific modification possible!

Valve assembly
(accessory)

17

REMKO RR

Electrical wiring diagram, four-wire system

RR 22.0 with DKT... -4, four-wire system (example)

Enabling

contact

CF SA

RR 22.0

BC SM

Bimetallic

thermostat

(alternative)

Room temperature

probe

Inlet

temperature

probe

JP4 = B

Heating valve assembly
(provided
by the customer)

Cooling
(Series)

Technical modifications reserved. Information provided without guarantee. Customer-specific modification possible!

DKT...-4

18

RR 22.0 with CHP, four-wire system (example)

Enabling

contact

CF SA

RR 22.0

BC SM

Bimetallic

thermostat

(alternative)

Room

temperature

probe

Inlet

temperature

probe

JP4 = B

KWK with HR 6

Four-wire valve
assembly (accessory)

Technical modifications reserved. Information provided without guarantee. Customer-specific modification possible!

19

REMKO INTERNATIONAL

... and also right in your neighbourhood!
Take advantage of our experience and advice

REMKO GmbH & Co. KG
Air conditioning and heating technology

Im Seelenkamp 12 D-32791 Lage
Postfach 1827 D-32777 Lage
Telephone [phone]
Fax [phone]
E-mail [e-mail]
Website www.remko.de

We reserve the right to make technical changes and provide no warranty as to the accuracy of this data!